The Heating Curve for a Substance Is Shown Below

question 105

Multiple Choice

The heating curve for a substance is shown below. The substance initially is a solid. It then becomes a liquid and a gas. Which of the line segments (I-V) represents the solid to liquid phase transition?

• A) I
• B) II
• C) III
• D) IV
• E) V

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Definitions:

Advance Notice

A warning or notification given in advance to prepare for or prevent something from happening.

Stockpiled Resources

Accumulated materials or assets kept in reserve for future use or during emergencies.

Sleep Deprivation

Sleep deprivation refers to the condition of not having enough sleep, which can affect both physical and mental health.

Systematic Desensitization

A therapeutic technique used to reduce phobia or anxiety through gradual exposure to the feared object or situation combined with relaxation exercises.